hi guys,
can netbios,using port 137, 138 and 139 be routed thru WAN ???
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Hello,
NetBIOS is a non-routeable protocol. If you want to transport it over WAN
links you will need to configure bridging. Check out:
http://www.cisco.com/en/US/partner/tech/tk331/tk660/technologies_tech_
note09186a0080093d4d.shtml
Regards,
Message Posted at:
http://www.groupstudy.com/form/re
I'd agree to NetBEUI not being routable, but surely NETBIOS over IP gotta be
routable!
What does a WINS server do for you, or LMHOST files?
Bikespace
""- jvd"" wrote in message
news:[EMAIL PROTECTED]
> Hello,
>
> NetBIOS is a non-routeable protocol. If you want to transport it over WAN
> link
Since your question already assumes these port ranges, it would
mean your question is really whether NetBIOS over TCP/IP can
be routed. And as such, it can, just like any other IP traffic.
""koh jef"" wrote in message
news:[EMAIL PROTECTED]
> hi guys,
>
> can netbios,using port 137, 138 and 139 b
koh jef wrote:
>
> hi guys,
>
> can netbios,using port 137, 138 and 139 be routed thru WAN ???
NetBIOS uses UDP and TCP which run on top of IP, which is routable over an
IP internetwork, including WAN links.
Routers don't forward broadcasts though, by default. When NetBIOS runs over
UDP ports 1
Directed broadcastes are less of a burden as far as passing brodcasts for
specific apps.
indeed netbios is not routeble, to route it u use NBT or NBIPX
""Priscilla Oppenheimer"" a icrit dans le message de
news: [EMAIL PROTECTED]
> koh jef wrote:
> >
> > hi guys,
> >
> > can netbios,using port 137
Hi,
I just want to make something clear. NetBIOS and NetBEUI were created by IBM
and later found its way to Microsoft networks who changed it.
- These protocols are non-routable in an IBM environment.
- NetBEUI is non-routable in TCP/IP networks.
- NetBIOS is non-routable without the help of NetB
jountao wrote:
>
> Directed broadcastes are less of a burden as far as passing
> brodcasts for
> specific apps.
Directed broadcasts are not allowed on modern networks and are totally
irrelevant to Windows networking anyway, which doesn't use them.
> indeed netbios is not routeble, to route it u
NetBIOS is a session layer protocol. Of course it's routable.
Yes, it's true that IBM invented NetBIOS.
NetBEUI was the name of IBM's software module that implemented NetBIOS. It
usually ran in conjunction with TOKREUI, by the way, which was driver
software for Token Ring.
NetBEUI didn't make an
At 6:15 PM + 6/23/03, Priscilla Oppenheimer wrote:
>
>
>Two, it's important to understand that every layer makes calls to a layer
>below and every layer offers services to a layer above. Because the service
>interface of a layer, whether it be LLC or UDP, is well known (hopefully),
>any upper l
hi, i just have to say that i will never try to answer anything on this
forum again. :-)
once i tried to answer a question with regards to bgp and a 1720 router and
only after howard helped us out was it clear that the processor does play an
important role. ;-)
this time only after the input from
- jvd 6/23/03 4:06:36 PM >>>
>hi, i just have to say that i will never try to answer anything on this
>forum again. :-)
>
>once i tried to answer a question with regards to bgp and a 1720 router
and
>only after howard helped us out was it clear that the processor does play
an
>important role.
There are too many smart arses around sometimes. The whole idea of a
discussion group isn't for everyone to "Provide the right answer or beware".
I think everyone would like to have a go sometimes, but there's that nagging
doubt that you're going to make a big slip up.
It's better I think when peop
What about Donner and Blitz..., oops, different story
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of
Howard C. Berkowitz
Sent: Monday, June 23, 2003 12:29 PM
To: [EMAIL PROTECTED]
Subject: Re: netbios [7:71084]
At 6:15 PM + 6/23/03, Priscilla
Monday, June 23, 2003 12:29 PM
>To: [EMAIL PROTECTED]
>Subject: Re: netbios [7:71084]
>
>
>At 6:15 PM + 6/23/03, Priscilla Oppenheimer wrote:
>>
>>
>>Two, it's important to understand that every layer makes calls to a layer
>>below and every layer offer
- jvd wrote:
>
> OT:
> hi, i just have to say that i will never try to answer anything
> on this forum again. :-)
Well, would that be Grumpy, Bashful, Sleepy, or Dopey to do that? :-)
Seriously, you should keep answering. You have sent some great answers, but
you don't want to keep insisting some
hi pple, well the reason why i ask this is because, recently i was told by
my network manager that there is a virus which uses netbios (udp 137, tcp
138 and tcp 139) as a transport and had acrosses the WAN from a spoke site
to a hub site. And i was told to put an ACL by blocking the above port on
t
;
Have fun!
:-)
Eric Brouwers
- Original Message -
From: "Priscilla Oppenheimer"
To:
Sent: Tuesday, June 24, 2003 3:50 AM
Subject: Re: netbios [7:71084]
> - jvd wrote:
> >
> > OT:
> > hi, i just have to say that i will never try to answer anything
> &g
Since the original question related to virus and certain ports, etc., here's
a good reference to keep an eye on:
http://isc.incidents.org/
You'll notice which ports have the most activity by geographical region
(there are marked differences). You can also look at the hyperlinks
associated with ea
>From my /etc/services...
netbios-ns 137/tcp#NETBIOS Name Service
netbios-ns 137/udp#NETBIOS Name Service
netbios-dgm 138/tcp#NETBIOS Datagram Service
netbios-dgm 138/udp#NETBIOS Datagram Service
netbios-ssn 139/tcp#NETBIOS Session Service
netbios-ssn
cial NetBIOS specification, although in practice, the
>NetBIOS version described in the IBM publication SC30-3587 LAN Technical
>Reference: 802.2 and NetBIOS APIs is used as reference.
>.."
>
>Have fun!
>:-)
>Eric Brouwers
>
>- Original Message -----
>From: "P
j k wrote:
>
> hi pple, well the reason why i ask this is because, recently i
> was told by my network manager that there is a virus which uses
> netbios (udp 137, tcp 138 and tcp 139) as a transport and had
> acrosses the WAN from a spoke site to a hub site.
The NetBIOS ports are infamous target
annlee wrote:
>
> Since the original question related to virus and certain ports,
> etc., here's
> a good reference to keep an eye on:
>
> http://isc.incidents.org/
Great! There you have it. NetBIOS port 137 at the top of the list. Since
broadcasts aren't carried across a router, the attackers d
ok great referrences, thanks everybody, keep the forum live!!!
:-)
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